creating revolve using python

[kunal_shgkr]

My intention is to create a bend using revolve between two faces using this program. For revolve, I have created a profile which is a line on one of the edge and axis which is parallel to both faces.

Code: Select all

if indexofface1 == -1 or indexofface2 == -1:continue



RevolveAxis = RevolveAxisList[indexofface1]

LineRevolve = LinesRevolveList[indexofface1]

angle = FinalAngleList[indexofface1]

FreeCAD.ActiveDocument.addObject("Part::Revolution","Revolve")

FreeCAD.ActiveDocument.Revolve.Source = LineRevolve

revolve_axis_unit_vector = RevolveAxisDirList[indexofface1]



axispt = [0.0,0.0,0.0]

axispt[0] = revolve_axis_unit_vector[0]

axispt[1] = revolve_axis_unit_vector[1]

axispt[2] = revolve_axis_unit_vector[2]



FreeCAD.ActiveDocument.Revolve.Axis = (axispt[0],axispt[1],axispt[2])

FreeCAD.ActiveDocument.Revolve.Base = (1.43,40.24,-2)

FreeCAD.ActiveDocument.Revolve.Angle = angle

FreeCAD.ActiveDocument.Revolve.Solid = False

FreeCAD.ActiveDocument.Revolve.AxisLink = (LineRevolve, "Edge1")

FreeCAD.ActiveDocument.Revolve.Symmetric = False

FreeCADGui.ActiveDocument.Line.Visibility = False

FreeCADGui.ActiveDocument.recompute()

except:

print("Exception in RevolveFaces")

The code works fine till Revolve.Solid but once it reaches Revolve.AxisLink it throws this error.

Error -->

Code: Select all

<Exception> type of first element in tuple must be 'DocumentObject', not NoneType

https://imgur.com/hjiXw6O profile and axis for revolve
https://imgur.com/EPoSuLN this is how it looks because of error
https://imgur.com/rou0FGS this is how it is supposed to look

I've attached the FreeCAD file and the content from the report view.
It stops at 3.5(refer report view file) and throws error

[Chris_G]

Every time you add an object to the document by script, you must recompute the doc if you want to access it immediately.

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revolve = FreeCAD.ActiveDocument.addObject("Part::Revolution","Revolve")
FreeCAD.ActiveDocument.recompute()
revolve.Source = LineRevolve
...

[TheMarkster]

You can attach your images directly here instead of another hosting site. It is better because we can see them here without need to click to some other site. And when that hosting site deletes them after some time they are gone where if they are here they will be here when someone else searches and finds this posting. Easiest way is to drag and drop directly to the form where you type your message.

You should also attach the freecad file you are working on so that if someone has a suggest he can test it before offering it.

Chris already has offered a suggestion, which might fix the problem. Let us know if that worked or not.

[kunal_shgkr]

Every time you add an object to the document by script, you must recompute the doc if you want to access it immediately.

Code: Select all

revolve = FreeCAD.ActiveDocument.addObject("Part::Revolution","Revolve")
FreeCAD.ActiveDocument.recompute()
revolve.Source = LineRevolve
...

Thank you for suggestion. If I understand it correctly I've to add FreeCAD.ActiveDocument.recompute() everytime I call an Object. By the way I've written this code in a seprate python file and opened and ran the file in FreeCAD.

[kunal_shgkr]

You can attach your images directly here instead of another hosting site. It is better because we can see them here without need to click to some other site. And when that hosting site deletes them after some time they are gone where if they are here they will be here when someone else searches and finds this posting. Easiest way is to drag and drop directly to the form where you type your message.

You should also attach the freecad file you are working on so that if someone has a suggest he can test it before offering it.

Chris already has offered a suggestion, which might fix the problem. Let us know if that worked or not.

I attached the images but they were not showing properly so I decided to to do this. Anyway I'll keep that in mind. As far as FreeCAD file is considered since this is just a snippet of code which generates a bend by using revolve command and the whole code generates CAD model. The main problem is that I can't share the whole code as this part of my company's project. Everything is working just fine but I got stuck at this step and even after googling whole day I couldn't find a solution therefore I posted here for help.

[Chris_G]

Thank you for suggestion. If I understand it correctly I've to add FreeCAD.ActiveDocument.recompute() everytime I call an Object. By the way I've written this code in a seprate python file and opened and ran the file in FreeCAD.

I mean, every-time you create an object in the document with myObj = aDocument.addObject()

[kunal_shgkr]

Thank you for suggestion. If I understand it correctly I've to add FreeCAD.ActiveDocument.recompute() everytime I call an Object. By the way I've written this code in a seprate python file and opened and ran the file in FreeCAD.

I mean, every-time you create an object in the document with myObj = aDocument.addObject()

Thanks for the reply but it is still giving me the same error.

[TheMarkster]

If you cannot add your company file perhaps you can create a new simplified file showing only the error and a snippet of (almost) working code for further analysis.

[kunal_shgkr]

If you cannot add your company file perhaps you can create a new simplified file showing only the error and a snippet of (almost) working code for further analysis.

Yep I can do that

[kunal_shgkr]

If you cannot add your company file perhaps you can create a new simplified file showing only the error and a snippet of (almost) working code for further analysis.

Sorry for replying this late. I've attached the FreeCAD file and the content from the report view.
It stops at 3.5 and throws the following error

Code: Select all

<Exception> type of first element in tuple must be 'DocumentObject', not NoneType 

Kindly look into it.